Like Sepulchral Voice pointed out, what are we defining here as popular music? I like *some* Bjork, Kraftwerk, Boards of Canada, and Autechre, but I don't know that they or any of the other bands mentioned in this thread would really be considered mainstream, aside from Rush. The closest that come to it are Bjork and Daft Punk, but even they lie a little below the Top 40 spectrum. Public Enemy would fall into that category, except most people who listen to rap don't tend to think of albums in terms of their being classics or not, which would more or less disqualify them too. As for Dragonforce, that's one of the candidates for worst band of all time, along with the Beegees, Creed, Bread, and (to me) the Eagles.